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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 0 |
| 4 | 0 |
| 5 | 2 |
| 6 | 4 |
| 7 | 0 |
| 8 | 0 |
| 9 | 0 |
| 10 | 3 |
| 11 | 24 |
| 12 | 26 |
| 13 | 0 |
| 14 | 0 |
| 15 | 0 |
| 16 | 0 |
| 17 | 8 |
| 18 | 98 |
| 19 | 284 |
| 20 | 214 |
| 21 | 0 |
| 22 | 0 |
| 23 | 0 |
| 24 | 0 |
| 25 | 0 |
| 26 | 19 |
| 27 | 374 |
| 28 | 1922 |
| 29 | 3496 |
| 30 | 2030 |
| 31 | 0 |
| 32 | 0 |
| 33 | 0 |
| 34 | 0 |
| 35 | 0 |
| 36 | 0 |
| 37 | 44 |
| 38 | 1342 |
| 39 | 10620 |
| 40 | 33398 |
| 41 | 44674 |
| 42 | 21174 |
| 43 | 0 |
| 44 | 0 |
| 45 | 0 |
| 46 | 0 |
| 47 | 0 |
| 48 | 0 |
| 49 | 0 |
| 50 | 111 |
| 51 | 4596 |
| 52 | 51904 |
| 53 | 245684 |
| 54 | 554500 |
| 55 | 589092 |
| 56 | 236410 |
[0,1,0,0,2,4,0,0,0,3,24,26,0,0,0,0,8,98,284,214,0, 0,0,0,0,19,374,1922,3496,2030,0,0,0,0,0,0,44,1342, 10620,33398,44674,21174,0,0,0,0,0,0,0,111,4596, 51904,245684,554500,589092,236410] |